CIV §1689.23: (a) Except as provided in subdivision (c) of Section 1689.

(a) Except as provided in subdivision (c) of Section 1689.22, within 20 days after a seminar sales solicitation contract or offer has been canceled, the buyer, upon demand, must tender to the seller any goods delivered by the seller pursuant to the sale or offer, but he or she is not obligated to tender at any place other than his or her own address. If the seller fails to demand possession of goods within 20 days after cancellation, the goods become the property of the buyer without obligation to pay for them. (b) The buyer has a duty to take reasonable care of the goods in his or her possession, both prior to cancellation and during the 20-day period following. During the 20-day period after cancellation, except for the buyer’s duty of care, the goods are at the seller’s risk. (c) If the seller has performed any services pursuant to a seminar sales solicitation contract or offer prior to its cancellation, the seller is entitled to no compensation. If the seller’s services result in the alteration of property of the buyer, the seller shall restore the property to substantially as good condition as it was at the time the services were rendered.